Linked Questions

30 votes
2 answers
20k views

Error: Illegal Parameter number in definition of \iterate [duplicate]

I'm using beamer class and I want to add a figure to my slides, however I keep getting this error : ! Illegal parameter number in definition of \iterate. <to be read again> ...
Math 2018's user avatar
  • 301
6 votes
1 answer
13k views

Why do I get the error "! Illegal parameter number in definition of \appendix."while redefining the \appendix command?

I'm trying to redefine the \appendix command so that my appendix headings go to the top of the pages. To do this, I tried the following code, but I get the error ! Illegal parameter number in ...
Sisabe's user avatar
  • 3,301
13 votes
1 answer
21k views

How to fix Illegal parameter number in definition of a new Tikz command?

This small piece of code isn't working. \documentclass{article} \usepackage[utf8]{inputenc} \usepackage{tikz} \usetikzlibrary{shapes.multipart} % \newcommand{\Stack}{ \begin{tikzpicture}[stack/.style=...
progammer's user avatar
  • 433
11 votes
1 answer
18k views

Error: Illegal parameter number in definition of \reserved@a [duplicate]

When I am using \caption{$\E_\A(D)$ where $\ora{UF}\!_n$} inside a table environment there shows some errors. Error : Only one # is allowed per tab. ...crcr }}}_n$\relax }}{95}{table.caption.41} ...
G_0_pi_i_e's user avatar
13 votes
2 answers
18k views

hyperref error using latex: "Illegal parameter number in definition of \Hy@temp" [closed]

I have a new laptop and installed Ubuntu 14.04 including TeX Live. A LaTeX file which worked well under Ubuntu 12.04 now gives error "Illegal parameter number in definition of \Hy@temp" when calling ...
Rob Rutten's user avatar
6 votes
2 answers
11k views

! Illegal parameter number in definition of \NewValue

Everything works fine until I added the following URL reference to my references.bib file. The URL reference is output but I am getting the error Illegal parameter number in definition of \NewValue....
ocean's user avatar
  • 283
6 votes
1 answer
4k views

href: Illegal parameter number in definition of \test

I tried to use the command \href{url}{anchor text} to link a page, but encountered the issue Illegal parameter number in definition of \test. The error is likely caused by # in url. Here is a MWE. \...
SparkAndShine's user avatar
0 votes
1 answer
2k views

How to create a enumerate list adding a custom prefix before each item number?

I found this question Adding some common text to enumerated description lists to be the closest: \documentclass{scrbook} \usepackage{enumitem} \newcounter{descriptcount} \newlist{enumdescript}{...
user's user avatar
  • 4,675
2 votes
1 answer
894 views

LaTeX error: illegal parameter number in definition of \pgffor@b

I am trying to use a loop. The following does not work: \foreach \a in {no,has}{ \begin{table}[H] \footnotesize \captionsetup{width=.9\linewidth} \caption{text} \vspace{-22pt} ...
bill999's user avatar
  • 453
2 votes
1 answer
2k views

"! Illegal parameter number in definition of \reserved@a" working with fncychap

I'm trying to compile a document, but when I launch pdflatex mydocument I get these output: ! Illegal parameter number in definition of \reserved@a <to be read again> l.14 \tableofcontents ...
Ntakwetet's user avatar
  • 611
2 votes
1 answer
1k views

! Illegal parameter number in definition of \abx@list@location

I am trying to migrate my document from Bibtex to Biblatex (biber), but after the change I cannot compile my document anymore. In this mini file I am trying to find my bug. What am I doing wrong? I ...
feeder's user avatar
  • 33
2 votes
1 answer
229 views

Error "! Illegal parameter number in definition of \ tikz @ children @ list." with library mindmap and hyperref packages

I've been trying to put the following url in quotation marks: https://integrada.minhabiblioteca.com.br/#/books/9788522112654/cfi/98!/4/[email protected]:18.2. But I always get the following error: "! Illegal ...
Yaacov NNNNM's user avatar